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Service campaign NCU - 2024100016

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService campaign
NHTSA id11010440
Published by NHTSA2024-11-12
Manufacturer's numberNCU - 2024100016
Manufacturer's date2024-11-09
NHTSA componentENGINE

NHTSA's summary

Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz, has determined that on certain MY 2019-2021 G-Class (463 platform) vehicles, the engine control unit software does not correspond to current production specifications. It is therefore possible that on-board diagnostics and/or exhaust gas emissions requirements may not be fulfilled. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will perform the ECU software update.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
MERCEDES-BENZ AMG G632019 to 2021
MERCEDES-BENZ G 5502019 to 2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.